Cascade Penn Plax Cascade Hang-on Power Replacement Filter Cartridge - 3 per Pack

Replacement Cartridges for Cascade 150 and Cascade 200. These replacement cartridges are designed to fit Penn-Plax Cascade 150 and Cascade 200 hang on aquarium filters. Each cartridge features a floss pad for capturing particulate matter from your aquarium as well as laboratory grade carbon which helps to filter any impurities odors and discoloration from your fish tank. Penn-Plax Cascade cartridges are packed with the most carbon of any comparable filter cartridge on the market. An internal shelf system helps to keep the carbon evenly distributed throughout the aquarium and prevents teabagging. Each pack of replacement cartridges contains 3 filter cartridges.